macpitta wrote:

Did u experience this with the FL version as well?
I have 22 and 24 FL and non FL
Glass tank is nice and coil maybe placed easier
but i doubt that it was a FL
I want non FL with Pyrex tank and clamps, old threads and chimney cap were much easier to handle.

Yes. This is the FL, some clones of both the 22mm and 24mm versions seem to have that issue.